Any
colour system can be used with the Picture Communication Symbols (PCS) as
long as it is consistent.The
recommended colours are as follows:

People

Yellow

Verbs

Green

Descriptions

Blue

Nouns

Orange

Social

Pink

Miscellaneous

White

It is
believed that if this colour system is followed, it will encourage some
consistency within the non-verbal population.It will also provide more flexibility in terms of combining different
types of symbol programs with one another.

If you
do not have a colour printer, you may use colour paper and photocopy your
symbols onto the corresponding coloured sheet.